We have just released an update on UserBit that enables multiple team members to collaboratively edit an interview response in real-time. This was already available for notes but we've made a ton of improvements in stability.

UserBit interview response editor now supports collaborative real-time editing
UserBit interview response editor now supports collaborative real-time editing

Now keep in mind that this is iteration one of the collaborative editing and we intend to continue to improve it to make your workflow smooth. If you encounter any issues while collaborating on notes, please let us know via the feedback widget!

Happy collaborating!